Added new regression algorithms

* Deleted regression algorithms because they tested behavior similar to
other existing regression algorithms
* Fixed new bug in regression algorithm due to AddData changes
* Added unit tests for wrapt version and package existence

* Fix issue where data would be set to raw normalization mode

Algorithm.Python/CustomDataUsingMapFileRegressionAlgorithm.py

@@ -43,7 +43,8 @@ class CustomDataUsingMapFileRegressionAlgorithm(QCAlgorithm):
 
         self.initialMapping = False
         self.executionMapping = False
-        self.symbol = self.AddData(CustomDataUsingMapping, "FOXA").Symbol
+        self.foxa = Symbol.Create("FOXA", SecurityType.Equity, Market.USA)
+        self.symbol = self.AddData(CustomDataUsingMapping, self.foxa).Symbol
 
     def OnData(self, slice):
         date = self.Time.date()